Multi-functional sink brush



FIG. 1 is a front, top and left side perspective view of a multi-functional sink brush;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof, the right side elevation view being a mirror image thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken lines in the drawings illustrate portions of the multi-functional sink brush that form no part of the claimed design. 

CLAIM The ornamental design for a multi-functional sink brush, as shown and described. 